Someone asked what your family think about this move. Do they support you? If so then go for it. As I pointed out you seem very capable and your skills are needed so if the new move does not work out then it should not be difficult to unpick the situation especially with their support. A few...
From what you've written I get the impression the main reason you're feeling the way you are is because you're giving up familiarity with your current surroundings for something different which is totally understandable. If this is the case and you do not have any major concerns with the company...